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Combining rotary and X feeds in mill?

On a 4th. axis mill, how can you combine the rotary feed, given in degrees per minute, with the X feed ib IPM?
Its a 4' diameter part with a thread shape around the OD.
Any ideas?
Heinz. www.doccnc.com

Re: Combining rotary and X feeds in mill?

Hello Steve:
How are things going in Wisconsin.
here in Ohio they are starting up with oil related work and I seem to get quite a few shops in N. Dakota doing the same thing.
Any oil where you are?
On the rotary feed, I have it as part of one of my Math DVDs, the question I had was to combine rotary wth regular feed.
The part is rotating at a certain feed while the X is moving over at another Feedrate, like cutting a square thread.
Good luck with your work there.
Heinz, www.doccnc.com